iPhone Life - Best Apps, Top Tips, Great Gear

Do you have an idea for an app but lack the programming knowledge to begin building it? In this weekly blog series, I will take you, the non-programmer, step by step through the process of creating apps for the iPhone, iPod touch, and iPad. Join me each week on this adventure, and you will experience how much fun turning your ideas into reality can be! This is Part 17 of the series. If you are just getting started now, check out the beginning of the series here. (This post has been updated to Swift 1.2, iOS 8 and Xcode 6.3.)

In my previous post, you learned how to generate Swift classes from entities in a data model and you were introduced to the mmBusinessObject class, which provides an easy-to-use wrapper for Core Data classes. In this week's post, we're going to create our app's custom business controllers and take them for a test drive!

There are many ways to stay connected with friends, family, and coworkers on iOS. Today we'll show you how to grant and revoke access to a shared calendar. Please note you can only share calendars with contacts who also have iCloud accounts and the email associated with their iCloud account must be saved in their contact card.